Finally, It has opioid in cheese with properties similar to Morphine.That has studied it from the European Food Safety Agency, get response to a number of studies and public health concern.It did a scientific literature review in 2009 to assess the potential health impact of casomorphin. That is similar biologically active peptides. A lot of the review centers addressing the overarching question (although several avenues were explored in detail): Do casomorphin have potentially deleterious health effects? The concern of course stemming from the addictive capacity of opioid drugs.